Make sure you have a good quality Phillips screwdriver. Mine had removable tips and had a small play at the connection. As a result I didn't have a good feel and damaged my screws (those securing the fan and the top left in step 23). Game over for me installing new thermal paste...

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Be EXTREMELY careful when removing and re-inserting the 'camera' cable. The contacts can be easily bent beyond repair if you try to force it back in. Damaging this cable at this connection or near the display may disable your ability to use your iSight camera, AND both your Bluetooth and WiFi. I had to pay apple $300 to replace the entire display assembly because one prong was faulty, causing my WiFi card to not be recognized.

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Although I ordered the screen for an A1278 MacBook Unibody Aluminum, the screen glass was marked as a MacBook Pro. The iSight/WiFi /BT cable was about an inch longer than the Macbook one and took a bit of creative re-routing, but everything works fine.

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Note for Step 10 during reassembly: Be careful when replacing the screw for the display cable bracket closest to the magnetic power cord receptacle. The interior magnet might attract the screw causing the screw to get pulled under the DC power circuit board which might then require that you disassemble things again to retrieve the screw.

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Hey guys, with these older models Do Not interchange different colored LVDS cables. Note the connector here is gold, do not use a silver connector on a gold one or vice versa. I fried a logic board this way on an A1278. Note that the core i7 lvds connector is different than the core i5.

imagine the monitor upside down and the screen facing away from you. You have to put the cover over to the right of where it goes about an inch or 2 and it will go in, then, slide it left to lock it into place

I was replacing a clutch cover that had cracked into a few pieces. I found the replacement didn’t slide to the left on installation. On further investigation I found the tabs from the old one were broken off inside where the cover slides. Once they were removed the install wen much better.

I found my replacement cover on Amazon.ca in case someone needs a Canadian source.

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In the second picture for this step the U notches on the wifi connector are facing out when in the socket, and this is quite misleading. Putting them in like this will not work and could potentially cause some serious damage to wifi card or motherboard. Be wary of this guide, and make sure you take pictures of how things are before you touch them.

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Carefully pull the camera cable connector toward the right side of the display and out of its socket on the AirPort card.

When reattaching the AirPort Cable, make sure that the U-shaped notches on one side of the cable end are not visible (facing the card). If the cable is installed incorrectly, it will cause logic board damage.

I fried both of my Airport cards, couldn't figure out why, and came back here and read about these little U-shaped notches. I had to bring the computer into my office to compare both sides of this cable. I would be nice to make sure that this tid bit of information is very noticeable for those who are following along.

Er, how sure is everyone about the directionality here? In the various images in this tutorial the connector appears with the U notches both facing and away. Perhaps the images reflect the learning process, but maybe the dot on the cable is key? One thing I can confirm is that it does matter - the cable connectivity is not symmetric.

Well, I don't yet know what damage I did to my logic board, but the instructions here are correct, at least for the system I am working with: if installed the other way around (with the U notches facing away from the connector), the system will turn on but when you try to shut it off (power button, shutdown option in OS) it will immediately turn back on. Only a long-press on the power button will shut the system down such that it stays off.

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This photo can be slightly misleading if you're not careful. It appears that unlike my cable, the pictured cable has the gray dot on both sides. In this photo you can see the 2 little sideways U notches that should be on the OTHER side. In photo 22 you can see that there are NO such notches as he is sliding the cable out of the connector.

My gray dot is only on the underside (not visible when the cable is plugged in correctly. When I first took the cable out to replace my Airport board, I thought maybe it had been inserted the wrong way which will damage the motherboard. So the gray dots are not a good indicator, just look for the sideways U notches as indicated in the iFixit directions.

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I went through this because after replacing the top case, upon restart the Airport card was not recognized. I was hoping the cable had come loose, as resetting PRAM and SMC didn't fix the issue (and searching the web, a LOT of people have this issue, most without having touched the internals of their Mac). That was not the case, everything appeared correct. So I got a USB wireless dongle and called it good.

Thank you very much for this guide. No real problem with the good tools! After restart, the wifi comes back! Yes!!! But just a little problem … the white becomes suddenly blue and impossible to change that. I open a second time to disconnect and connect the LCD wire. It seems to be ok but after mounting the screws, my blue problem comes back! Do somebody have an idea?

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